JPH0564730B2 - - Google Patents
Info
- Publication number
- JPH0564730B2 JPH0564730B2 JP24424584A JP24424584A JPH0564730B2 JP H0564730 B2 JPH0564730 B2 JP H0564730B2 JP 24424584 A JP24424584 A JP 24424584A JP 24424584 A JP24424584 A JP 24424584A JP H0564730 B2 JPH0564730 B2 JP H0564730B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output
- circuit
- frequency
- polarity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004154 testing of material Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009661 fatigue test Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D15/00—Control of mechanical force or stress; Control of mechanical pressure
- G05D15/01—Control of mechanical force or stress; Control of mechanical pressure characterised by the use of electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Feedback Control In General (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24424584A JPS61120942A (ja) | 1984-11-19 | 1984-11-19 | 材料試験機の負荷速度制御装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24424584A JPS61120942A (ja) | 1984-11-19 | 1984-11-19 | 材料試験機の負荷速度制御装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61120942A JPS61120942A (ja) | 1986-06-09 |
| JPH0564730B2 true JPH0564730B2 (enrdf_load_stackoverflow) | 1993-09-16 |
Family
ID=17115887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24424584A Granted JPS61120942A (ja) | 1984-11-19 | 1984-11-19 | 材料試験機の負荷速度制御装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61120942A (enrdf_load_stackoverflow) |
-
1984
- 1984-11-19 JP JP24424584A patent/JPS61120942A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61120942A (ja) | 1986-06-09 |
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